package com.sky.controller.admin;


import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

/**
 * 菜品管理
 */
@RestController("adminDishController")
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
@Slf4j
public class DishController {


    @Autowired
    private DishService dishService;
    @Autowired
    private RedisTemplate redisTemplate;


    /**
     * 新增菜品
     * @param dishDTO
     * @return
     */
    @PostMapping
    @ApiOperation("新增菜品")
    public Result addDish(@RequestBody DishDTO dishDTO){
        log.info("新增菜品{}",dishDTO);
        dishService.addDishAndFlavor(dishDTO);

        // 清理缓存数据
        String key = "dish_" + dishDTO.getCategoryId();
        cleanRedis(key);

        return Result.success();
    }


    /**
     * 菜品分页查询
     * @return
     */
    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> selectDishPage(DishPageQueryDTO dishPageQueryDTO){
        log.info("菜品分页查询");

        PageResult pageResult = dishService.selectDishPage(dishPageQueryDTO);
        return Result.success(pageResult);
    }


    /**
     * 批量删除菜品
     * @return
     */
    @DeleteMapping
    @ApiOperation("批量删除菜品")
    public Result deleteDish(@RequestParam List<Long> ids){
        log.info("批量删除菜品{}",ids);
        dishService.deleteDish(ids);

        // 清除所有的菜品缓存数据
        cleanRedis("dish_*");

        return Result.success();
    }


    /**
     * 根据ID查询菜品(页面回显)
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    @ApiOperation("根据ID查询菜品信息")
    public Result<DishVO> selectDishById(@PathVariable Long id){
        log.info("根据ID查询菜品{}",id);
        DishVO dishVO = dishService.selectDishById(id);
        return Result.success(dishVO);
    }


    /**
     * 修改菜品信息
     * @param dishDTO
     * @return
     */
    @PutMapping
    @ApiOperation("修改菜品信息")
    public Result updateDish(@RequestBody DishDTO dishDTO){
        log.info("修改菜品信息{}",dishDTO);
        dishService.updateDishAndFlavor(dishDTO);

        // 清除所有的菜品缓存数据
        cleanRedis("dish_*");

        return Result.success();
    }


    /**
     * 菜品启售和停售
     * @param status
     * @param id
     * @return
     */
    @GetMapping("/status/{status}")
    public Result<String> startOrStop(@PathVariable Integer status,Long id){
        dishService.startOrStop(status,id);

        // 清除所有的菜品缓存数据
        cleanRedis("dish_*");

        return Result.success();
    }


    /**
     * 清理缓存数据
     * @param pattern
     */
    private void cleanRedis(String pattern) {
        Set keys = redisTemplate.keys(pattern);    // 根据key查询到所有的keys
        redisTemplate.delete(keys);
    }
}
